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According to results mitigation measures are necessary to provide in this area. The outcome of the study can be used as a guide for proper utilization of the reservoir during drought and will be helpful in planning, development and management of drought mitigation measures, due to temporal and spatial non-uniform rainfall distribution and varying water demand in the sub-basin. Drought impact can be reduced by implementing the ability of water regulation throughout the rainy and dry seasons. It seems that our study provided a scientific basis for further research of agricultural drought hazard in distinguished major hazard zones in sub-basin. TABLE IV

Figure 9 According to results mitigation measures are necessary to provide in this area. The outcome of the study can be used as a guide for proper utilization of the reservoir during drought and will be helpful in planning, development and management of drought mitigation measures, due to temporal and spatial non-uniform rainfall distribution and varying water demand in the sub-basin. Drought impact can be reduced by implementing the ability of water regulation throughout the rainy and dry seasons. It seems that our study provided a scientific basis for further research of agricultural drought hazard in distinguished major hazard zones in sub-basin. TABLE IV

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The area selected for the study is the Upper Seonath sub- basin which is Sub-basin of Mahanadi River. The Seonath River is major tributary of Mahanadi River, is a non- perennial river. The basin of Seonath located between 20°16' N to 22°41' N latitude and 80°25' E to 82°35' E longitude. Total geographical area of Upper Seonath sub basin is 7292 sq.km. The two districts of Chhattisgarh State namely Durg and Rajnandgaon are covered in this basin. The southwest monsoon sets over this region during the second week of June and rainfall activity continuous till second week of October. The mean annual rainfall in the basin varies from 1005 mm to 1255 mm. Figure | shows the location map of the study area. Figure 1. Location map of Upper Seonath sub baisn
The area selected for the study is the Upper Seonath sub- basin which is Sub-basin of Mahanadi River. The Seonath River is major tributary of Mahanadi River, is a non- perennial river. The basin of Seonath located between 20°16' N to 22°41' N latitude and 80°25' E to 82°35' E longitude. Total geographical area of Upper Seonath sub basin is 7292 sq.km. The two districts of Chhattisgarh State namely Durg and Rajnandgaon are covered in this basin. The southwest monsoon sets over this region during the second week of June and rainfall activity continuous till second week of October. The mean annual rainfall in the basin varies from 1005 mm to 1255 mm. Figure | shows the location map of the study area. Figure 1. Location map of Upper Seonath sub baisn
Il. STuDY AREA
Il. STuDY AREA
Figure 2. Procedural flow chart of Methodology International Journal of Emerging Technology and Advanced Engineering Weights and Themes Assigned to Hazard Category and SPI Values
Figure 2. Procedural flow chart of Methodology International Journal of Emerging Technology and Advanced Engineering Weights and Themes Assigned to Hazard Category and SPI Values
TABLE III
TABLE III
SPI computation has been applied to long-term precipitation data at 22 stations for the period 1983-2013 (January 1983 to December 2013). Four representative stations namely Dongargaon, Madiyan, Bhanupratappur, Ambagarh were selected to show SPI value in the very high, high, moderate, low drought susceptible areas those are located in central, west, south and east of sub-basin, respectively and the bar plot of yearly SPI for above station is shown in Figure 7. Figure 4. Drought hazard occurrences based on SPI for 31 year time scale
SPI computation has been applied to long-term precipitation data at 22 stations for the period 1983-2013 (January 1983 to December 2013). Four representative stations namely Dongargaon, Madiyan, Bhanupratappur, Ambagarh were selected to show SPI value in the very high, high, moderate, low drought susceptible areas those are located in central, west, south and east of sub-basin, respectively and the bar plot of yearly SPI for above station is shown in Figure 7. Figure 4. Drought hazard occurrences based on SPI for 31 year time scale
Figure 3. Annual drought thematic maps for 30 year time period Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008 Certified Journal, Volume 4, Issue 10, October 2
Figure 3. Annual drought thematic maps for 30 year time period Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008 Certified Journal, Volume 4, Issue 10, October 2
Drought Severity Classification from extremely dry to extremely wet for panoramic 22 stations
Drought Severity Classification from extremely dry to extremely wet for panoramic 22 stations
Figure 5. Hazard zones of Upper Seonath sub-basin International Journal of Emerging Technology and Advanced Engineering
Figure 5. Hazard zones of Upper Seonath sub-basin International Journal of Emerging Technology and Advanced Engineering
Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008 Certified Journal, Volume 4, Issue 10, October Figure 7. SPI values for annual rainfall for the four representatives station in each DHI category
Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008 Certified Journal, Volume 4, Issue 10, October Figure 7. SPI values for annual rainfall for the four representatives station in each DHI category
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